Apparatus for distributing heat produced by combustion.



P. PLANTINGA.

APPARATUS FOR DISTRIBUTING HEAT PRODUCED BY COMBUSTION. APPLICATION FILED APR.27. I912.

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E a7 a? Z 1" a P. PLANTINGA. v APPARATUS FOR DISTRIBUTING HEAT PRODUCED BY COMBUSTION.

APPLICATION FILED APILZT, I912. I wfidwm I Patented M11213, 1915.

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WI LIA u I P. PLANTINGA. APPARATUS FOR DISTRIBUTING HEAT PRODUCED BY COMBUSTION.

APPLICATION FILED APILZI, I9l2.

Patented A1012 13, 1915.

3 SHEETSBHEET 3.

2 i 1. mil;

PIERRE PLANTINGA, 0F CLEVELAND, OHIO.

APPARATUS FOR DISTRIBUTING HEAT PRODUCED BY COMBUSTION.

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Specification of Letters Patent.

Patented Apr. 13, 19115.;

Application filed Apri127, 1912. Serial N 0. 698,813.

To all whom it may concern Be it known that I, PIERRE PLANTINGA, a

citizenof-the United States, a resident ofbest mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to methods of and apparatus for distributing heat resulting from combustion.

The object of this invention is to distribute heat produced by combustion in an eflicient and economical manner.

My said invention consists of a method and means for carrying out such method, hereinafter fully described, and particularly set forth in the claims.

The annexed drawings and the following description set forth in detail a certain method and certain means embodying my invention, the disclosed method and means,

however, constituting but one of the various Ways respectively in which the principle of such invention may be applied.

In said annexed drawings: Figure 1 is a transverse vertical cross-section of a muffle furnace, embodying my invention. Fig. 2 1s a horizontal section taken upon the planes indicated by lines IT-H in Fig. 1. F1g. 3 1s a horizontal section taken upon the planes indicated by lines III-J11 in Fig. 1; Fig. 4 1s a horizontal section taken upon the planes indicated by lines IV'-IV in Fig. 1. Fig. 5 is a vertical section taken upon the planes indicated by lines VV in Fig. 1. F1g.-6 is a vertical section taken upon the planes indicated by lines Vl[VI in Fig. 1. Fig. 7 is a vertical section taken upon the planes indicated by lines VTI-VII in Fig. 1.

Referring to said figures, A is a main outer shell constructed of suitable material, in the upper portion of which is a heating chamber or muflle B, permanently closed at the one end and provided with a charging opening, closed by means of asuitable door, 13', at the other end, a shown in Figs. 5 and 6. This muflie is supported at the bottom by means of transverse horizontal walls ormidfeathers a, and vertical walls or mid-feathers a, as shown in Figs. 2 and 7. Midfeathers a form a plurality of passages extending across the bottom of the mufile, parallel with eachother, and the mid-feathers a. form vertical passages on the opposite sides of the muflle. The upper ends of these vert cal passages communicate with a space a above the mullie, so that a continuous passage is aiforded, upwardly through and from one vertical passage, over, into and downwardly through the other vertical passage. Two vertical passages and one horizontal passage are arranged in the same vertical planes, and the right-hand end of each horizontal passage communicates with the lower end of a right-hand vertical passage at 01.

Fig. 1. Adjacent to the lower end of each right-hand vertical passage and right-hand end of each horizontal passage is a combustion-chamber, a which communicates by means of a passage a with the producer C of gaseous fuel, which in the drawings is shown to be anordinary gas producer. The outlet of each of these passages a is controlled by a valve, D, situated in a suitable horizontal recess 03, and normally closed by means of a removable fire clay plug, cl. By means of these valves, the amount of gaseous fuel supplied to the combustionchamber may be regulated.

Communicating with each combustionchamber, adjacent to the outlet opening of each of the passages a is the outlet of a secondary-air duct E. These air ducts are supplied with air through a recuperator structure E of any well known form, and this recuperator structure receives its supply of air from a main passage E Figs. 1 and 4:, communicating with the atmosphere. The left-hand end of each of the horizontal passages communicates at a with vertical passages E of the recuperator structure, and this communication is controlled by a valve F, which may be reached through an aperture a normally closed by a plug d". The lower end of each of the left-hand vertical passages communicates also with a ver- ,tical passage E which latter all communithe producer into the plurality of combustion-chambers a, where, with the aid of the secondary-air supplied by the ducts IE, it is.

in this recuperator structure for heating the secondary-air prior to its utilization for combustion purposes in the combustionchambers (11. in the usual manner. From the passages E said gases of combustion pass into the flue H, and out through the stack, as will be readily understood.

By providing the passage beneath, above, and at the sides of the muflle, and causing the gases to travel as a result of the above described arrangement, upwardly, over, and downwardly, and at the same time across beneath the mufile, I am able to utilize the heat contained in such gases, not only economically, but also in such a manner as to effect a uniformity of distribution of such heat upon all sides of the muflie furnace, to the greatest possible degree, and thereby obtain, in a like degree, a uniformity of heating of the interior of the mufile, an object greatly to be desired, and ordinarily hard to attain.

In addition to the provision of the pas-- sages as above described, for conducting these gases of combustion, the provision of valves F and G and the consequent control of the flow of said gases through these passages, enables me to still further control and regulate the required distribution of the heat so as to eflect the desired uniformity of the heating of the interior of the muflie. In operation, these valves are manipulated until a position is found which will give the best results. I

Having fully described my invention, what I claim and desire to secure by Letters Patent is:

1. In apparatus for distributing heat, the

combination of an inclosed heating-chamber; a combustion-chamber in proximity to the latter; a fuel-supply duct communicating with said combustion-chamber, and

- means for controlling such communication;

- wardly upon its opposite side; an outletduct with which each of said last two named ducts communicates; and means for controlling communication through each of said latter two ducts.

2.. In apparatus for distributing heat, the. combination of an inclosed heating-chamber; a combustion-chamber in proximity to the latter; an outlet-duct; a plurality of ducts passing from said combustion-chamber respectively above and beneath said heating-chamber and discharging into said outlet-duct; and valves for controlling communioation through said plurality of ducts.

3. In apparatus for distributing heat, the combination of an inclosed heating chamber; a combustion chamber in proximity to the bottom and laterally of said heating chamber, and a duct passing from such combustion chamber in proximity to the said heating chamber and communicating with an outlet duct; a second duct passing from said combustion chamber in a difi'erent direction, also in proximity to said heating chamber and communicating with said outlet duct; and means located in proximity to the lower portion of said heating chamber and also laterally thereof for controlling communication through each'of the ducts which are in proximity to said heating chamber..

i. In apparatus for distributing heat, the combination of an inclosed heating chamber; a combustion chamber located near the bottom and at one side of the outside of the latter; a duct passing from said combustion chamber in proximity to the heating chamber upwardly, then over and then downwardly; a second duct passing from said combustion chamber beneath said heating chamber and in proximity thereto; an outlet duct with which each of said first named ducts communicates; and a valve located in each of the said two first named ducts for controlling communication therethrough and located in proximity to the point of plommunication therewith with said outlet uct.

5. In apparatus for distributing heat, the combination of a completel inclosed heating-chamber; a plurality o separated combustion-chambers in proximity to the lower part of said heating-chamber; outlet means; a-separat-e duct passing from each combustion-chamber and in communication with said outlet duct; and means for controlling such communication.

6. In apparatus for distributing heat, the

combination of a completely inclosed heating-chamber; a plurality of combustionchambers in proximity to the latter; an upper chamber above said heating-chamber; a plurality of ducts in proximity to the lower part of said heating-chamber, each combustion chamber being connected with said upper chamber by one of said ducts; outlet means; said upper chamber being in communication with said outlet means; and means for controlling such communication.

7. In apparatus for distributing heat, the combination of a completely inclosed heating chamber; a plurality of combustionchambers in proximity to the lower part of the latter; an upper chamber above said heating-chamber; a separate duct connectin each such combustion-chambers with said upper chamber; outlet means; a plurality of separate ducts afiording communication between said outlet means and said upper chamber; and means for controlling such communication.

8. In apparatus for distributing heat, the combination of an inclosed heating-chamber; a plurality of combustion-chambers in proximity to the latter; outlet means; a separate duct communicating with each of said combustion chambers and in communication with said outlet means; means for controlling such communication; and additional ducts affording communication between each of said combustion-chambers and said outlet means, and means for controlling such lastnamed communication.

9. In apparatus for distributing heat, the combination of an inclosed heating-chamber;

a plurality of transverse walls beneath said chamber and forming a plurality of ducts; combustion-chambers respectively in communication with one end of each of said ducts; outlet means in communication with the other end of said ducts; means for controlling such communication; an outer casing spaced from said heating-chamber; vertical Walls or mid-feathers forming two series of vertical passages on opposite sides respectively of said heating-chamber and between the latter and said casing; an upper chamber above said heating-chamber and in communication with one end of said two series of ducts; the other end of one of said series of ducts beingin communication with said outlet means; and means for controlling such last-named communication; the other end of the other series of ducts each being in communication with the said combustion cham- I bers respectively.

Signed by me this 18th day of April, 1912.

PIERRE PLANTINGA. Attested by- L. C. HAMLINKS, A. E. Manner. 

